Cupola valve
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Introduction
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Knife-type slurry gate valve according to different caliber made of concealed rod and open rod two forms (concealed rod DN50 ~ 2600mm, open rod DN50 ~ 800mm), full-circle DC channel design does not store slag, no jamming. The low end of the knife plate is processed into a knife edge shape, which has the function of cutting off soft materials such as fiber, pulp, wood pulp, and at the same time has a good opening and closing function. There is a hard PTFE scraper installed at the upper end of the knife plate, which can prevent dust, gravel and other abrasive substances from entering the stuffing box and significantly improve the life of the knife plate. Valve plate material selection of stainless steel, fine grinding and polishing treatment can obtain the best sealing effect.
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